The Aqua Flo 40200116 Control Module (Ballast) is used for 120 volt applications with the UVB and UV20 standard systems that are not equipped with and audible alarm or a solenoid valve.

Features:

• Voltage: 120
• Systems: UV20, UVB
• Lamp Out Circuit with Alarm: N/A
• Lamp Out Circuit with Solenoid: N/A
• UL Listed 41Y4

To Replace the Ballast for the Aqua Flo UV20 and UVB Series, you must purchase the Control Module item #10 (page 5 of manual or page 9 of PDF).